Unit 6

Question 1

Approximately how many bones are there in the human body?

Answer 1

206

Question 2

The occipital bone can be classified as

Answer 2

Flat

Question 3

How many phalanges are there in the body?

Answer 3

56

Question 4

It is the bone of the axial skeleton that are primarily involved in the protection of internal organs.

Answer 4

True

Question 5

The occipital and parietal bones in the skull are separated by structures known as

Answer 5

Sutures

Question 6

The bones in your upper arm are classified as ___________ bones.

Answer 6

long

Question 7

Which of the following is not a bone in the ear?

Answer 7

hyoid

Question 8

A fracture in which one side of the shaft is broken and the other side is bent is a

Answer 8

greenstick fracture

Question 9

Active exercise can increase the mass and strength of bone

Answer 9

True

Question 10

A person who chooses to eat a diet of junk food and has a sedentary job is NOT likely to experience:

Answer 10

Thickened, prominent ridges on the places in bone near where muscle attaches

Question 11

AN imbalance of osteoclasts and osteoblasts activity, in which osteoclasts become more active than osteoblasts, leads to:

Answer 11

bone that are less able to resists physical stress

Question 12

During osteogenesis, which of the following cells would appear first?

Answer 12

Fibroblasts

Question 13

Large multinucleated cells involved in the process of osteolysis is ___________________.

Answer 13

Osteoblasts

Question 14

Osteolysis is the ______________.

Answer 14

Removal of the bone matrix by osteoclasts

Question 15

Spongey bone is also referred to as _________________ bone.

Answer 15

Cancellous

Question 16

Perforating Volkmannn canals _________________.

Answer 16

Supply blood to the osteons

Question 17

The outer covering of the bone, made from fibrous connective tissues, is called the ______________________.

Answer 17

Periosteum

Question 18

Mature bone found in lacune are called ______________________.

Answer 18

Osteocytes

Question 19

One function of the bone is to produce red and white blood cells. These cells are made what substance in bone?

Answer 19

Red marrow

Question 20

One of the basic histological differences between compact and spongy bone is that in compact bone, ________________.

Answer 20

the basic unit is the osteon

Question 21

Which of the following is NOT a function of the skeletal system

Answer 21

Contraction

Question 22

A person with type AB blood would have _______________ antigens on their RBC’s and contain _________________ antibodies in their plasma.

Answer 22

A and B; neither anti-A not anti-B

Question 23

A person with eosinophilia, or greater than normal numbers of eosinophils, is most likely suffering from ____________________.

Answer 23

Allergies or internal parasites

Question 24

RBCs live around ___________________ before they disintegrate.

Answer 24

120 days

Question 25

The buffy coat created by separating blood cells is comprised of ____________________.

Answer 25

Leukocytes and platelets

Question 26

Which blood cell can described as biconcave disc?

Answer 26

erythrocytes

Question 27

Which of the formed elements of blood are essential to gas exchange with tissues?

Answer 27

Erythrocytes

Question 28

The average amount of blood in an adult is ________________ L.

Answer 28

5

Question 29

Which of these factors can increase the amount of erythrocytes?

Answer 29

exercise

Question 30

Erythroblastosis fetalis, also known as hemolytic disease in newborns, most often occurs in ________________ mother carrying ________________ babies.

Answer 30

Rh-; Rh+

Question 31

The white blood cell that forms antibodies necessary for immunity to specific disease is the

Answer 31

lymphocyte

Question 32

spongey bone is found primarily at which part of the long bones?

Answer 32

expanded ends, where long bones articulate with other skeletal elements.

Question 33

What are the circulating hormones that stimulate bone growth?

Answer 33

growth hormone thyroxine

Question 34

What us the term for the extended tubular shaft of a long bone?

Answer 34

diaphysis

Question 35

Males have more red blood cells than females

Answer 35

True

Question 36

Which protein functions in coagulation?

Answer 36

fibrinogen

Question 37

Osteocytes are connected through tiny canals called:

Answer 37

Canaliculi

Question 38

The following image best represents: (it's that picture with the bone)

Answer 38

compact bone

Question 39

The process of blood cell formation is:

Answer 39

hematopoiesis

Question 40

When hematopoietic stem cells initially differentiate, they can become either myeloid progenitor cells or lymphoid progenitor cells. These two cell types can then further differentiate into the blood cell types with which we are most familiar. Given than a hematopoietic stem cell has differentiated into a myeloid progenitor cell, which of the following cell types can be eliminated as a potential final cell.

Answer 40

T-cells

Question 41

Osteocytes regularly undergo a mitotic process.

Answer 41

False

Question 42

Bone will grow around a cartilaginous framework during fetal development. This leads to:

Answer 42

the eventual death of the chondrocytes due to the combination of the bone blocking resources and the avascular nature of cartilage

Question 43

Endochondral ossification is _______________ as it compares to intramembranous ossification.

Answer 43

slow

Question 44

____________________ ossification ends after about 2-3 month but cartilaginous growth at the end of long bones continue along with ________________ ossification after birth.

Answer 44

primary, secondary

Question 45

Red marrow has a reddish color due to the presence of ______________.

Answer 45

hemoglobin

Question 46

Ossification centers are seen during:

Answer 46

intramembranous ossification

Question 47

The growth plate in long bones is also known as:

Answer 47

epiphysial plate

Question 48

How many oxygen atoms must attach to a single molecule of hemoglobin in order for it to be considered saturated?

Answer 48

four